[apple/shell_cmds.git] / window / wwopen.c

/*	$NetBSD: wwopen.c,v 1.9 1998/08/25 20:59:43 ross Exp $	*/

/*
 * Copyright (c) 1983, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Edward Wang at The University of California, Berkeley.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/cdefs.h>
#ifndef lint
#if 0
static char sccsid[] = "@(#)wwopen.c	8.2 (Berkeley) 4/28/95";
#else
__RCSID("$NetBSD: wwopen.c,v 1.9 1998/08/25 20:59:43 ross Exp $");
#endif
#endif /* not lint */

#include <sys/types.h>
#include <sys/socket.h>
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
#include "ww.h"

struct ww *
wwopen(type, oflags, nrow, ncol, row, col, nline)
	int type, oflags, nrow, ncol, row, col, nline;
{
	struct ww *w;
	int i, j;
	char m;
	short nvis;

	w = (struct ww *)calloc(sizeof (struct ww), 1);
	if (w == 0) {
		wwerrno = WWE_NOMEM;
		goto bad;
	}
	w->ww_pty = -1;
	w->ww_socket = -1;

	for (i = 0; i < NWW && wwindex[i] != 0; i++)
		;
	if (i >= NWW) {
		wwerrno = WWE_TOOMANY;
		goto bad;
	}
	w->ww_index = i;

	if (nline < nrow)
		nline = nrow;

	w->ww_w.t = row;
	w->ww_w.b = row + nrow;
	w->ww_w.l = col;
	w->ww_w.r = col + ncol;
	w->ww_w.nr = nrow;
	w->ww_w.nc = ncol;

	w->ww_b.t = row;
	w->ww_b.b = row + nline;
	w->ww_b.l = col;
	w->ww_b.r = col + ncol;
	w->ww_b.nr = nline;
	w->ww_b.nc = ncol;

	w->ww_i.t = MAX(w->ww_w.t, 0);
	w->ww_i.b = MIN(w->ww_w.b, wwnrow);
	w->ww_i.l = MAX(w->ww_w.l, 0);
	w->ww_i.r = MIN(w->ww_w.r, wwncol);
	w->ww_i.nr = w->ww_i.b - w->ww_i.t;
	w->ww_i.nc = w->ww_i.r - w->ww_i.l;

	w->ww_cur.r = w->ww_w.t;
	w->ww_cur.c = w->ww_w.l;

	w->ww_type = type;
	switch (type) {
	case WWT_PTY:
		if (wwgetpty(w) < 0)
			goto bad;
		break;
	case WWT_SOCKET:
	    {
		int d[2];
		if (socketpair(AF_LOCAL, SOCK_STREAM, PF_UNSPEC, d) < 0) {
			wwerrno = WWE_SYS;
			goto bad;
		}
		(void) fcntl(d[0], F_SETFD, 1);
		(void) fcntl(d[1], F_SETFD, 1);
		w->ww_pty = d[0];
		w->ww_socket = d[1];
		break;
	    }
	}
	if (type != WWT_INTERNAL) {
		if ((w->ww_ob = malloc(512)) == 0) {
			wwerrno = WWE_NOMEM;
			goto bad;
		}
		w->ww_obe = w->ww_ob + 512;
		w->ww_obp = w->ww_obq = w->ww_ob;
		if (w->ww_pty >= wwdtablesize)
			wwdtablesize = w->ww_pty + 1;
	}

	w->ww_win = wwalloc(w->ww_w.t, w->ww_w.l,
		w->ww_w.nr, w->ww_w.nc, sizeof (char));
	if (w->ww_win == 0)
		goto bad;
	m = 0;
	if (oflags & WWO_GLASS)
		m |= WWM_GLS;
	if (oflags & WWO_REVERSE) {
		if (wwavailmodes & WWM_REV)
			m |= WWM_REV;
		else	oflags &= ~WWO_REVERSE;
	}
	for (i = w->ww_w.t; i < w->ww_w.b; i++)
		for (j = w->ww_w.l; j < w->ww_w.r; j++)
			w->ww_win[i][j] = m;

	if (oflags & WWO_FRAME) {
		w->ww_fmap = wwalloc(w->ww_w.t, w->ww_w.l,
			w->ww_w.nr, w->ww_w.nc, sizeof (char));
		if (w->ww_fmap == 0)
			goto bad;
		for (i = w->ww_w.t; i < w->ww_w.b; i++)
			for (j = w->ww_w.l; j < w->ww_w.r; j++)
				w->ww_fmap[i][j] = 0;
	}

	w->ww_buf = (union ww_char **)
		wwalloc(w->ww_b.t, w->ww_b.l,
			w->ww_b.nr, w->ww_b.nc, sizeof (union ww_char));
	if (w->ww_buf == 0)
		goto bad;
	for (i = w->ww_b.t; i < w->ww_b.b; i++)
		for (j = w->ww_b.l; j < w->ww_b.r; j++)
			w->ww_buf[i][j].c_w = ' ';

	w->ww_nvis = (short *)malloc((unsigned) w->ww_w.nr * sizeof (short));
	if (w->ww_nvis == 0) {
		wwerrno = WWE_NOMEM;
		goto bad;
	}
	w->ww_nvis -= w->ww_w.t;
	nvis = m ? 0 : w->ww_w.nc;
	for (i = w->ww_w.t; i < w->ww_w.b; i++)
		w->ww_nvis[i] = nvis;

	w->ww_state = WWS_INITIAL;
	CLR(w->ww_oflags, WWO_ALLFLAGS);
	SET(w->ww_oflags, oflags);
	return wwindex[w->ww_index] = w;
bad:
	if (w != 0) {
		if (w->ww_win != 0)
			wwfree(w->ww_win, w->ww_w.t);
		if (w->ww_fmap != 0)
			wwfree(w->ww_fmap, w->ww_w.t);
		if (w->ww_buf != 0)
			wwfree((char **)w->ww_buf, w->ww_b.t);
		if (w->ww_nvis != 0)
			free((char *)(w->ww_nvis + w->ww_w.t));
		if (w->ww_ob != 0)
			free(w->ww_ob);
		if (w->ww_pty >= 0)
			(void) close(w->ww_pty);
		if (w->ww_socket >= 0)
			(void) close(w->ww_socket);
		free((char *)w);
	}
	return 0;
}
Commit	Line	Data
44bd5ea7 A	1	/* $NetBSD: wwopen.c,v 1.9 1998/08/25 20:59:43 ross Exp $ */
	2
	3	/*
	4	* Copyright (c) 1983, 1993
	5	* The Regents of the University of California. All rights reserved.
	6	*
	7	* This code is derived from software contributed to Berkeley by
	8	* Edward Wang at The University of California, Berkeley.
	9	*
	10	* Redistribution and use in source and binary forms, with or without
	11	* modification, are permitted provided that the following conditions
	12	* are met:
	13	* 1. Redistributions of source code must retain the above copyright
	14	* notice, this list of conditions and the following disclaimer.
	15	* 2. Redistributions in binary form must reproduce the above copyright
	16	* notice, this list of conditions and the following disclaimer in the
	17	* documentation and/or other materials provided with the distribution.
	18	* 3. All advertising materials mentioning features or use of this software
	19	* must display the following acknowledgement:
	20	* This product includes software developed by the University of
	21	* California, Berkeley and its contributors.
	22	* 4. Neither the name of the University nor the names of its contributors
	23	* may be used to endorse or promote products derived from this software
	24	* without specific prior written permission.
	25	*
	26	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	27	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	28	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	29	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	30	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	31	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	32	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	33	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	34	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	35	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	36	* SUCH DAMAGE.
	37	*/
	38
	39	#include <sys/cdefs.h>
	40	#ifndef lint
	41	#if 0
	42	static char sccsid[] = "@(#)wwopen.c 8.2 (Berkeley) 4/28/95";
	43	#else
	44	__RCSID("$NetBSD: wwopen.c,v 1.9 1998/08/25 20:59:43 ross Exp $");
	45	#endif
	46	#endif /* not lint */
	47
	48	#include <sys/types.h>
	49	#include <sys/socket.h>
	50	#include <fcntl.h>
	51	#include <stdlib.h>
	52	#include <unistd.h>
	53	#include "ww.h"
	54
	55	struct ww *
	56	wwopen(type, oflags, nrow, ncol, row, col, nline)
	57	int type, oflags, nrow, ncol, row, col, nline;
	58	{
	59	struct ww *w;
	60	int i, j;
	61	char m;
	62	short nvis;
	63
	64	w = (struct ww *)calloc(sizeof (struct ww), 1);
65	if (w == 0) {
66	wwerrno = WWE_NOMEM;
67	goto bad;
68	}
69	w->ww_pty = -1;
70	w->ww_socket = -1;
71
72	for (i = 0; i < NWW && wwindex[i] != 0; i++)
73	;
74	if (i >= NWW) {
75	wwerrno = WWE_TOOMANY;
76	goto bad;
77	}
78	w->ww_index = i;
79
80	if (nline < nrow)
81	nline = nrow;
82
83	w->ww_w.t = row;
84	w->ww_w.b = row + nrow;
85	w->ww_w.l = col;
86	w->ww_w.r = col + ncol;
87	w->ww_w.nr = nrow;
88	w->ww_w.nc = ncol;
89
90	w->ww_b.t = row;
91	w->ww_b.b = row + nline;
92	w->ww_b.l = col;
93	w->ww_b.r = col + ncol;
94	w->ww_b.nr = nline;
95	w->ww_b.nc = ncol;
96
97	w->ww_i.t = MAX(w->ww_w.t, 0);
98	w->ww_i.b = MIN(w->ww_w.b, wwnrow);
99	w->ww_i.l = MAX(w->ww_w.l, 0);
100	w->ww_i.r = MIN(w->ww_w.r, wwncol);
101	w->ww_i.nr = w->ww_i.b - w->ww_i.t;
102	w->ww_i.nc = w->ww_i.r - w->ww_i.l;
103
104	w->ww_cur.r = w->ww_w.t;
105	w->ww_cur.c = w->ww_w.l;
106
107	w->ww_type = type;
108	switch (type) {
109	case WWT_PTY:
110	if (wwgetpty(w) < 0)
111	goto bad;
112	break;
113	case WWT_SOCKET:
114	{
115	int d[2];
116	if (socketpair(AF_LOCAL, SOCK_STREAM, PF_UNSPEC, d) < 0) {
117	wwerrno = WWE_SYS;
118	goto bad;
119	}
120	(void) fcntl(d[0], F_SETFD, 1);
121	(void) fcntl(d[1], F_SETFD, 1);
122	w->ww_pty = d[0];
123	w->ww_socket = d[1];
124	break;
125	}
126	}
127	if (type != WWT_INTERNAL) {
128	if ((w->ww_ob = malloc(512)) == 0) {
129	wwerrno = WWE_NOMEM;
130	goto bad;
131	}
132	w->ww_obe = w->ww_ob + 512;
133	w->ww_obp = w->ww_obq = w->ww_ob;
134	if (w->ww_pty >= wwdtablesize)
135	wwdtablesize = w->ww_pty + 1;
136	}
137
138	w->ww_win = wwalloc(w->ww_w.t, w->ww_w.l,
139	w->ww_w.nr, w->ww_w.nc, sizeof (char));
140	if (w->ww_win == 0)
141	goto bad;
142	m = 0;
143	if (oflags & WWO_GLASS)
144	m \|= WWM_GLS;
145	if (oflags & WWO_REVERSE) {
146	if (wwavailmodes & WWM_REV)
147	m \|= WWM_REV;
148	else oflags &= ~WWO_REVERSE;
149	}
150	for (i = w->ww_w.t; i < w->ww_w.b; i++)
151	for (j = w->ww_w.l; j < w->ww_w.r; j++)
152	w->ww_win[i][j] = m;
153
154	if (oflags & WWO_FRAME) {
155	w->ww_fmap = wwalloc(w->ww_w.t, w->ww_w.l,
156	w->ww_w.nr, w->ww_w.nc, sizeof (char));
157	if (w->ww_fmap == 0)
158	goto bad;
159	for (i = w->ww_w.t; i < w->ww_w.b; i++)
160	for (j = w->ww_w.l; j < w->ww_w.r; j++)
161	w->ww_fmap[i][j] = 0;
162	}
163
164	w->ww_buf = (union ww_char **)
165	wwalloc(w->ww_b.t, w->ww_b.l,
166	w->ww_b.nr, w->ww_b.nc, sizeof (union ww_char));
167	if (w->ww_buf == 0)
168	goto bad;
169	for (i = w->ww_b.t; i < w->ww_b.b; i++)
170	for (j = w->ww_b.l; j < w->ww_b.r; j++)
171	w->ww_buf[i][j].c_w = ' ';
172
173	w->ww_nvis = (short )malloc((unsigned) w->ww_w.nr sizeof (short));
174	if (w->ww_nvis == 0) {
175	wwerrno = WWE_NOMEM;
176	goto bad;
177	}
178	w->ww_nvis -= w->ww_w.t;
179	nvis = m ? 0 : w->ww_w.nc;
180	for (i = w->ww_w.t; i < w->ww_w.b; i++)
181	w->ww_nvis[i] = nvis;
182
183	w->ww_state = WWS_INITIAL;
184	CLR(w->ww_oflags, WWO_ALLFLAGS);
185	SET(w->ww_oflags, oflags);
186	return wwindex[w->ww_index] = w;
187	bad:
188	if (w != 0) {
189	if (w->ww_win != 0)
190	wwfree(w->ww_win, w->ww_w.t);
191	if (w->ww_fmap != 0)
192	wwfree(w->ww_fmap, w->ww_w.t);
193	if (w->ww_buf != 0)
194	wwfree((char **)w->ww_buf, w->ww_b.t);
195	if (w->ww_nvis != 0)
196	free((char *)(w->ww_nvis + w->ww_w.t));
197	if (w->ww_ob != 0)
198	free(w->ww_ob);
199	if (w->ww_pty >= 0)
200	(void) close(w->ww_pty);
201	if (w->ww_socket >= 0)
202	(void) close(w->ww_socket);
203	free((char *)w);
204	}
205	return 0;
206	}